<template>
  <div class="page" :style="pageStyle">

    <slot name="bg" />

    <div class="headers" v-if="!$route.query.isApp" ref="header" :class="{on:isheadBg}">
      <slot name="header" />
    </div>

    <div class="content-container" id="scroll" :style="{ paddingTop: head_height + 'px', paddingBottom: footer_height + 'px' }">
      <div class="content-scroll" id="content">
        <slot name="content" />
      </div>
    </div>
    <div class="footer" v-if="footer" ref="footers">
      <slot name="footer" />
    </div>
    <slot />
  </div>
</template>
<script>
import {mapMutations} from "vuex";

export default {
  name: 'PageScroll',
  props: {
    header: {
      type: Boolean,
      default: true,
    },
    headerFixed: {
      type: Boolean,
      default: false,
    },
      isheadBg: {
          type: Boolean,
          default: true,
      },

    pageStyle: {
      type: String,
      default: '',
    },
    footer: {
      type: Boolean,
      default: false,
    },
  },
  data() {
    return {
      isIOS: false,
      backTop: false,
      head_height:'',
      footer_height:'',
        timer:null

    }
  },
    watch:{
        footHeight(a,b){
            if(!this.footer){
                this.footer_height = 0
            }else{
                this.footer_height = this.footHeight;
            }
        }
    },
  created() {

  },
    computed: {
        headHeight() {
            return this.$store.state.headHeight
        },
        footHeight() {
            return this.$store.state.footHeight
        }
    },

  mounted() {

      let that = this

      if(this.header){
          this.timer = window.setInterval( ()  =>{
              that.head_height = that.$refs.header?.offsetHeight;
              that.footer_height = that.$refs.footers?.offsetHeight;
          }, 500);
      }


  },

    destroyed() {
        clearTimeout(this.timer);
    },
  methods: {
      ...mapMutations([
          'SET_FOOTHeight',
          'SET_HEADHeight'
      ]),
  },

}
</script>
<style lang="less" scoped>
.page {
  //position: absolute;
  //width: 100%;
  min-height: 100vh;
  //display: flex;
  //flex-direction: column;
  background-size: cover;



  .headers {
    position: fixed;top:0;
    width: 100%;
    max-width: 8.5rem;
    z-index: 100;
    -webkit-transition: all .5s;
    -moz-transition: all .5s;
    -ms-transition: all .5s;
    -o-transition: all .5s;
    transition: all .5s;
    &.on {
    }
    &.fixed {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
    }
  }

  .footer {
    position: fixed;
    left: 50%;
    bottom:0;
    transform: translateX(-50%);
    width: 100%;
    max-width: 8.5rem;
    z-index: 999;
  }

  .content-container {
    width: 100%;
    position: relative;
    flex-grow: 1;
    padding-top: .6rem;
    -webkit-transition: all .5s;
    -moz-transition: all .5s;
    -ms-transition: all .5s;
    -o-transition: all .5s;
    transition: all .5s;
    .content-scroll {
      padding-bottom: .24rem;
      //position: absolute;
      //top: 0;
      //left: 0;
      //width: 100%;
      //height: 100%;
      //overflow-y: auto;
      //overflow-scrolling: touch
    }
  }

  .back-top {
    position: absolute;
    bottom: 3rem;
    right: 0.1rem;
    z-index: 99;
    width: 1.4rem;
    height: 1.6rem;
  }
}
</style>
